Scroll:Algebra >> Term III Ex 1.2 >> saq (4445)


Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.



 

1)  

 The sum of two numbers is 51. If one number is 13, what is the other number


Answer:_______________




2)  

 The sum of two numbers is 43. If one number is 24, what is the other number


Answer:_______________




3)  

 The sum of two numbers is 50. If one number is 23, what is the other number


Answer:_______________




4)  

 The sum of two numbers is 52. If one number is 30, what is the other number


Answer:_______________




5)  

 The sum of two numbers is 48. If one number is 16, what is the other number


Answer:_______________




6)  

 The sum of two numbers is 50. If one number is 11, what is the other number


Answer:_______________




7)  

 The sum of two numbers is 45. If one number is 17, what is the other number


Answer:_______________




8)  

 The sum of two numbers is 40. If one number is 12, what is the other number


Answer:_______________




9)  

 The sum of two numbers is 56. If one number is 29, what is the other number


Answer:_______________




10)  

 The sum of two numbers is 49. If one number is 17, what is the other number


Answer:_______________




 

1)  

 The sum of two numbers is 51. If one number is 13, what is the other number

Answer: 38


SOLUTION 1 :

Let the required number y.

Given:

    13 + y = 51.

⇒ y = 51 - 13    ( on transposing + 13 becomes - 13 ).

⇒  y = 38.

Hence, the requried number is 38.



2)  

 The sum of two numbers is 43. If one number is 24, what is the other number

Answer: 19


SOLUTION 1 :

Let the required number x.

Given:

    24 + x = 43.

⇒ x = 43 - 24    ( on transposing + 24 becomes - 24 ).

⇒  x = 19.

Hence, the requried number is 19.



3)  

 The sum of two numbers is 50. If one number is 23, what is the other number

Answer: 27


SOLUTION 1 :

Let the required number y.

Given:

    23 + y = 50.

⇒ y = 50 - 23    ( on transposing + 23 becomes - 23 ).

⇒  y = 27.

Hence, the requried number is 27.



4)  

 The sum of two numbers is 52. If one number is 30, what is the other number

Answer: 22


SOLUTION 1 :

Let the required number x.

Given:

    30 + x = 52.

⇒ x = 52 - 30    ( on transposing + 30 becomes - 30 ).

⇒  x = 22.

Hence, the requried number is 22.



5)  

 The sum of two numbers is 48. If one number is 16, what is the other number

Answer: 32


SOLUTION 1 :

Let the required number y.

Given:

    16 + y = 48.

⇒ y = 48 - 16    ( on transposing + 16 becomes - 16 ).

⇒  y = 32.

Hence, the requried number is 32.



6)  

 The sum of two numbers is 50. If one number is 11, what is the other number

Answer: 39


SOLUTION 1 :

Let the required number x.

Given:

    11 + x = 50.

⇒ x = 50 - 11    ( on transposing + 11 becomes - 11 ).

⇒  x = 39.

Hence, the requried number is 39.



7)  

 The sum of two numbers is 45. If one number is 17, what is the other number

Answer: 28


SOLUTION 1 :

Let the required number y.

Given:

    17 + y = 45.

⇒ y = 45 - 17    ( on transposing + 17 becomes - 17 ).

⇒  y = 28.

Hence, the requried number is 28.



8)  

 The sum of two numbers is 40. If one number is 12, what is the other number

Answer: 28


SOLUTION 1 :

Let the required number x.

Given:

    12 + x = 40.

⇒ x = 40 - 12    ( on transposing + 12 becomes - 12 ).

⇒  x = 28.

Hence, the requried number is 28.



9)  

 The sum of two numbers is 56. If one number is 29, what is the other number

Answer: 27


SOLUTION 1 :

Let the required number x.

Given:

    29 + x = 56.

⇒ x = 56 - 29    ( on transposing + 29 becomes - 29 ).

⇒  x = 27.

Hence, the requried number is 27.



10)  

 The sum of two numbers is 49. If one number is 17, what is the other number

Answer: 32


SOLUTION 1 :

Let the required number y.

Given:

    17 + y = 49.

⇒ y = 49 - 17    ( on transposing + 17 becomes - 17 ).

⇒  y = 32.

Hence, the requried number is 32.